Results 31 to 40 of about 34,337 (295)

Numerical methods of geomechanics tasks solution during coal deposits’ development [PDF]

open access: yes, 2016
Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of rock massif physical model ...
Bondarenko, V   +4 more
core   +2 more sources

Harvesting systems for steep terrain in the Italian Alps: state of the art and future prospects [PDF]

open access: yes, 2016
Steep slope forest operations in Central Europe and in particular in the Alps are strongly related to the adoption of the cable-based harvesting system, even if innovative ground-based harvesting system, even if innovative ground-based harvesting systems
Cavalli, Raffaele   +2 more
core   +1 more source

Influence of Valleys Terrain on Pressure of Fully Mechanized Working Faces in Shallow Coal Seams [PDF]

open access: yesShock and Vibration, 2021
The absence of a key stratum during overburden rock movement is crucial to the mining pressure of fully mechanized coal mining faces. Using physical and numerical simulations, the 21304 mechanized mining in Daliuta and Huojitu coal mining faces 1−2 appeared twice during a pressure frame accident analysis.
YingJie Liu, Qingjie Qi, Anhu Wang
openaire   +2 more sources

Numerical simulation and trumpet optimization of the inside inhaling and outside pressing dust collector

open access: yesAIP Advances, 2020
Dust seriously affects the safe production of coal mines, and a high dust concentration operating environment is harmful to the health of miners. It is necessary to take dust reduction measures on the working surface.
Zhongliang Lu   +2 more
doaj   +1 more source

Mathematical model of automatic following control in the middle of fully mechanized mining face

open access: yesGong-kuang zidonghua, 2016
With consideration of bi-directional cutting characteristics of fully mechanized mining face and analysis of coordinated control of shear, hydraulic support and scraper conveyor, a mathematical model was firstly proposed to describe curved path of ...
SHI Yong   +3 more
doaj   +1 more source

Automatic operation and manual intervention analysis system for intelligent fully mechanized caving face

open access: yesGong-kuang zidonghua, 2020
In the context of intelligent fully mechanized caving and mining, it is important to consider not only the cutting by the shearer, but also the coal caving at the back of the support and top coal recovery.
HAN Xiuqi   +4 more
doaj   +1 more source

Research progress and prospect of wet dust control technology in fully mechanized excavation face

open access: yesMeikuang Anquan, 2023
The ventilation of fully mechanized roadway in coal mine is easy to cause the rapid diffusion of dust, which makes it more difficult to control dust pollution. In order to improve the working environment of fully mechanized coal mining face, the progress
ZHU Xiaotong   +5 more
doaj   +1 more source

Asian Roboticism: Connecting Mechanized Labor to the Automation of Work [PDF]

open access: yes, 2020
This article reconsiders the present-day automation of work and its transformation of who we are as humans. What has been missing from this important conversation are the social meanings surrounding Asian roboticism or how Asians have already been ...
Bui, Long
core   +1 more source

Analysis of operation parameters of partial backfilling in the context of selective coal mining [PDF]

open access: yes, 2019
Purpose is to determine factors of effect of mechanical parameters and geometry of packs, constructed using the undercut rocks in the process of selective coal mining, on the state of geomechanical system within a mine working-stope junction during a ...
Dereviahina, N, Malanchuk, L, Sotskov, V
core   +1 more source

Grid partition method of fully-mechanized coal mining face area and its applicatio

open access: yesGong-kuang zidonghua, 2018
In order to meet fine management requirements for fully-mechanized coal mining face production, a grid partition method of fully-mechanized coal mining face area was put forward.
QU Shijia
doaj   +1 more source

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